[gtk+] tests: Fix height checks in treeview scrolling test

[Benjamin Otte <otte src gnome org>]

commit 33961154b6cdf75816655a0500e3788418c670d2
Author: Benjamin Otte <otte redhat com>
Date:   Mon Feb 6 19:50:11 2012 +0100

    tests: Fix height checks in treeview scrolling test
    
    If things get centered in the scrolling area depens on the height of the
    row, too.

 gtk/tests/treeview-scrolling.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/tests/treeview-scrolling.c b/gtk/tests/treeview-scrolling.c
index 3e28d4b..0c123f9 100644
--- a/gtk/tests/treeview-scrolling.c
+++ b/gtk/tests/treeview-scrolling.c
@@ -350,7 +350,7 @@ assert_position_with_align (GtkTreeView  *tree_view,
 	case 1:
 		/* 0.5 */
 		if (pos == POS_TOP
-		    && row_start < gtk_adjustment_get_page_size (vadjustment) / 2) {
+		    && row_start < (gtk_adjustment_get_page_size (vadjustment) - row_height) / 2) {
 			/* For the first half of the top view we can't
 			 * center the row in the view, instead we
 			 * show the first page.
@@ -358,7 +358,7 @@ assert_position_with_align (GtkTreeView  *tree_view,
 			 */
 			g_assert (gtk_adjustment_get_value (vadjustment) == 0);
 		} else if (pos == POS_BOTTOM
-			   && row_start >= gtk_adjustment_get_upper (vadjustment) - gtk_adjustment_get_page_size (vadjustment) / 2) {
+			   && row_start + row_height >= gtk_adjustment_get_upper (vadjustment) - (gtk_adjustment_get_page_size (vadjustment) - row_height) / 2) {
 			/* For the last half of the bottom view we
 			 * can't center the row in the view, instead
 			 * we show the last page.
@@ -375,7 +375,7 @@ assert_position_with_align (GtkTreeView  *tree_view,
 			 *      (ie. the row's center is at the
 			 *       center of the view).
 			 */
-			gdouble middle = gtk_adjustment_get_page_size (vadjustment) / 2 - row_height / 2;
+			gdouble middle = (gtk_adjustment_get_page_size (vadjustment) - row_height) / 2.0;
 			g_assert (row_y == ceil (middle) || row_y == floor (middle));
 		}
 		break;